116 results about "RANKL" patented technology

Devices and methods for stimulation of the vagus nerve to modulate (e.g., reduce, suppress, etc.) bone erosion. Methods and apparatus for modulating bone erosion may modulate levels of Receptor Activator for Nuclear Factor κ B Ligand (RANKL), and / or to modulate (increase, enhance, etc.) osteoprotegerin (OPG) and / or OPG / RANKL ratio. Devices may include electrical stimulation devices that may be implanted, and may be activated to apply current for a proscribed duration, followed by a period without stimulation.

A method for constructing stable bioactive fusion proteins of the difficult to express tumor necrosis factor superfamily (TNFSF), and particularly members CD40L (CD154) and RANKL / TRANCE, with collecting, particularly pulmonary surfactant protein D (SPD) is described. Single trimers of these proteins lack the full stimulatory efficacy of the natural membrane forms of these proteins in many cases. The multimeric nature of these soluble fusion proteins enables them to engage multiple receptors on the responding cells, thereby, mimicking the effects of the membrane forms of these ligands. For CD40L-SPD, the resulting protein stimulates B cells, macrophages, and dendritic cells, indicating its potential usefulness as a vaccine adjuvant. The large size of these fusion proteins makes them less likely to diffuse into the circulation, thereby limiting their potential systemic toxicity. This property may be especially useful when these proteins are injected locally as a vaccine adjuvant or tumor immunotherapy agent to prevent them from diffusing away. In addition, these and other TNFSF-collectin fusion proteins present new possibilities for the expression of highly active, multimeric, soluble TNFSF members.

The invention provides fusion protein of a human interleukin receptor C (IL-17RC). The fusion protein contains a key region where the human IL-17RC is bonded with interleukin 17A(IL-17A) and interleukin 17F(IL-17F)and a human IgG1 Fc segment. The IL-17RC-hFc fusion protein provided by the invention has the capacity of binding the IL-17A and the IL-17F, can inhibit release of inflammatory cytokines and expression of RANKL molecules irritated by the IL-17A and the IL-17F, can be used for treating IL-17 associated autoimmune diseases such as rheumatoid arthritis and the like, and exerts the effects of inhibiting inflammation and antagonizing bone destruction. The IL-17RC-hFc fusion protein can serve as a therapeutic bait receptor and provides a new therapeutic approach and thought for diseases such as rheumatoid arthritis and the like. The IL-17RC-hFc fusion protein is subjected to prokaryotic expression in vitro; and the method is high in expression quantity, high in controllability, relatively low in production cost and easy in large-scale production.

The present invention pertains to the provision of trimeric binding units which bind to trimeric cytokines. In particular there is provided a trimeric polypeptide comprising a trimerising domain and three monomers with binding members capable of binding a trimeric cytokine. Preferably , the trimeric binding units bind in a manner such that upon binding, all receptor binding sites of the trimeric cytokine are substantially blocked, and hence the potential biological activity of the trimeric cytokine is suppressed. In one aspect the invention relates to trimeric binders capable of binding to trimeric cytokines of the Tumor necrosis factor ligand superfamily, such as TNF, TRAIL, RANKL, TWEAK, APRIL and BAFF.

Novel methods and drug products for treating inflammatory joint diseases such as rheumatoid arthritis and associated arthritides are disclosed. The methods and products employ various serum markers of bone and cartilage metabolism or destruction, including cartilage oligomer matrix protein (COMP) and Receptor activator of NFB ligand (RANKL), as biomarkers to assess the effect of IL-17A antagonists on joint destruction in inflammatory joint diseases.

The invention discloses application of 2-bromopalmitate (2-BP) in preparation of drugs for prevention and treatment of bone loss related diseases, and belongs to the technical field of medicine. The invention, for the first time, clearly defines that 2-BP can inhibit osteoclast differentiation process of BMMs stimulated by RANKL through various experimental techniques, including tartrate resistantacid phosphatase staining, phalloidin fluorescence staining, bone lamella bone resorption function evaluation, reverse transcription real-time fluorescence quantitative PCR, Western blot, etc. In addition, the invention clearly states that 2-BP also has effects in inhibiting osteoclast differentiation and activation in vivo, and 2-BP can significantly alleviate the pathological process of massivebone loss caused by estrogen deficiency through the establishment of a mouse model of ovariectomy-induced osteoporosis, thus providing experimental data basis in vivo for the role of 2-BP in the prevention and treatment of bone loss related diseases.

The invention relates to methods and compositions for inhibiting the trimerization of ligands belonging to the TNF superfamily. In particular, the invention relates to inhibiting RANKL trimerization. Accordingly, the methods and compositions provided herein can be used to treat disorders associated with increased RANK signalling, in particular those related to bone loss. Novel compounds that inhibit trimerization of ligands belonging to the TNF superfamily are also provided.

This invention provides a method for administration of an effective amount of RANKL-binding molecules that act on prechondrocytes and / or mesenchymal stem cells, accelerate cartilage differentiation, proliferation, and maturation of such cells, enhance chondrocyte differentiation, and induce chondrocyte proliferation to induce chondrocyte proliferation and differentiation or increase cartilage matrix production and a pharmaceutical composition used for inducing chondrocyte proliferation and differentiation or increasing cartilage matrix production. The pharmaceutical composition used for treatment or prevention of a chondropathies comprises, as an active ingredient, a compound that acts on prechondrocytes and / or mesenchymal stem cells and induces at least one of the following: (a) acceleration of prechondrocyte and / or mesenchymal stem cell differentiation; (b) acceleration of prechondrocyte and / or mesenchymal stem cell proliferation; (c) acceleration of prechondrocyte and / or mesenchymal stem cell maturation; (d) enhancement of chondrocyte differentiation; (e) chondrocyte proliferation; and (f) increased production of the cartilage matrix.

The invention provides an antibody pair for detecting RANKL content in serum and application thereof. According to the invention, RANKL antigen is divided into two sequences of N end (SEQ ID NO: 2) and C end (SEQ ID NO: 3), and the two sequences are respectively used for immunizing mice to screen antibody pairs anti AntiRANKL_N and anti AntiRANKL_C with high specificity and high sensitivity. The antibody pair can effectively determine RANKL content in serum, and is convenient for diagnosis and treatment of osteoporosis.

The invention discloses an application of a substituted guanidyl-containing derivative in preparation of an osteoclast differentiation inhibitor. The substituted guanidyl-containing derivative has a direct and remarkable inhibition effect on RANKL-induced osteoclast differentiation and bone resorption activity, so that the substituted guanidyl-containing derivative can be used as an osteoclast differentiation inhibitor drug for treating diseases treated by an osteoclast differentiation inhibitor.